Substack status
Substack uptime & performance at a glance
- Current status
- Operational
- Uptime · 24h
- 100%
- Uptime · 7 days
- 100%
- Uptime · since Aug 5, 2026
- 100%
- Response time
- 700 ms
- Tracked incidents
- 0
- SSL certificate
- —
Is Substack down everywhere, or just for you?
Our probes reached Substack successfully from every monitoring region in the last check round.
| Monitoring region | Last check | Success rate (24h) | Avg response |
|---|---|---|---|
| Asia Pacific | Reachable | 100% | 785 ms |
| Europe | Reachable | 100% | 688 ms |
| North America (East) | Reachable | 100% | 479 ms |
| North America (West) | Reachable | 100% | 565 ms |
Based on 3,100 automated checks in the last 24 hours. A region only appears here once we have real measurements from it.
What to check when Substack misbehaves
Substack is a news and reading service in our news & reading catalog. Services like this rarely fail as one block — these pieces can break on their own, so identifying which one is affected usually explains what you are seeing.
- WebsiteArticles loading
- Paywall & loginSubscriber access
- Mobile appReading offline and online
- MediaImages and embedded video
- Search & archiveFinding older articles
Our automated checks measure reachability and response time of Substack's public endpoint. Component level detail above reflects what users of this kind of service typically report, not a vendor status feed.
Incident timeline
No incidents reported. Everything is green.
Substack appears stable across all monitored regions. Community reports in the last hour are within normal noise levels.
Monitoring live signals…
No disruptions detected
No regional issues yet
About Substack
Substack is a publishing platform used by writers to create and distribute email newsletters and manage paid subscriptions. Authors use the interface to draft posts, while readers access content via the web or mobile app and manage their delivery preferences. Technical failures usually impact the distribution of emails, the loading of high-resolution images within articles, or the functionality of the billing system for premium subscribers. Rimetry observes the accessibility of Substack's hosting and delivery layers to ensure that users are alerted to any significant disruptions in service.
Substack (substack.com) is a news & reading service monitored continuously by rimetry from multiple global regions. We probe its public endpoints every 60 seconds to detect outages, latency spikes, and regional degradations the moment they happen.
Right now Substack is reporting as operational across our probes, with an average response time of 700 ms and 100.00% uptime over the last 24 hours. Most users connecting to substack.com are seeing it work normally.
Common causes of disruption for services like Substack include backend API failures, region-specific routing problems at the CDN or ISP layer, expired TLS certificates, DNS misconfigurations, and capacity spikes during major events. rimetry combines automated probes, vendor status feeds, and verified community reports to give you a single high-confidence answer instead of guessing.
Paste this anywhere — your site, docs, README — and visitors see the live rimetry health for this service.
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<p style="font:11px -apple-system,sans-serif"><a href="https://rimetry.com/substack-status?utm_source=embed&utm_medium=badge" rel="dofollow">Substack status by rimetry</a></p>[](https://rimetry.com/substack-status?utm_source=embed&utm_medium=badge)Related services
Other news & reading tools people watch alongside Substack. See the full category.
What is Substack?
Newsletters
Substack is part of our News & Reading category. You can also review current trending outages across the internet.
Common issues
- · Articles not loading
- · Subscriber content locked despite an active plan
- · Images and video failing
- · App feed not refreshing
Similar patterns often surface across other news & reading providers — cross-check against the global outage map.
Troubleshooting
- · Reload without an ad blocker — many reading errors are blocker-related
- · Sign in again if subscriber content is hidden
- · Try the mobile app if the site is unreachable
- · Check whether only certain sections fail
- · Clear cookies if the paywall counter is stuck
- · Check Substack's official social channels
Not sure whether it's you or the service? Run a live speed test, check what your IP looks like from the edge, or watch for regional trouble on the worldwide outage map. For the wider picture, browse recent incidents or filter down to news & reading.
FAQ
- Is Substack down for everyone?
Use the live status above — green means it's likely just you. - How often is the status updated?
Every minute from four global regions. - Where can I see past Substack incidents?
Every event we've recorded lives in the live incident feed, and older ones are grouped in the monthly incident archive. - What else is broken right now?
See the trending outages page or narrow it to news & reading.